Weld pool development during GTA and laser beam welding of Type 304 stainless steel; Part II-experimental correlation

Journal Article · Fri Dec 01 00:00:00 EST 1989 · Welding Journal (Miami); (USA)

OSTI ID:6955952

Zacharia, T; David, S A; Vitek, J M ^[1]; Debroy, T ^[2]

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1. Metals and Ceramics Div., Oak Ridge National Lab, Oak Ridge, TN (USA)
2. Dept. of Materials Science and Engineering, Pennsylvania State Univ, Univ Park, PA (USA)

In part I of the paper, the results of the heat flow and the fluid flow analysis were presented. Here, in Part II of the paper, predictions of the computational model are verified by comparing the numerically predicted and experimentally observed fusion zone size and shape. Stationary gas tungsten arc and laser beam welds were made on Type 304 stainless steel for different times to provide a variety of solidification conditions such as cooling rate and temperature gradient. Calculated temperatures and cooling rates are correlated with the experimentally observed fusion zone structure. In addition, the effect of sulfur on GTA weld penetration was quantitatively evaluated by considering two heats of 304 stainless steel containing 90 and 240 ppm sulfur. Sulfur, as expected, increased the depth/width ratio by altering the surface tension gradient driven flow in the weld pool.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6955952
• Journal Information: Welding Journal (Miami); (USA), Vol. 68:12; ISSN 0043-2296
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
STAINLESS STEEL-304
LASER WELDING
ARGON
AUSTENITIC STEELS
CHEMICAL COMPOSITION
CHROMIUM OXIDES
CORRELATIONS
EXPERIMENTAL DATA
FLUID FLOW
GAS TUNGSTEN-ARC WELDING
HEAT TRANSFER
MICROSTRUCTURE
OXYGEN
PHASE STUDIES
SOLIDIFICATION
SULFUR CONTENT
TEMPERATURE GRADIENTS
WELDED JOINTS
ALLOYS
ARC WELDING
CHALCOGENIDES
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DATA
ELEMENTS
ENERGY TRANSFER
FABRICATION
FLUIDS
GASES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
JOINING
JOINTS
MATERIALS
NICKEL ALLOYS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
RARE GASES
STAINLESS STEELS
STEEL-CR19NI10
STEELS
TRANSITION ELEMENT COMPOUNDS
WELDING
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies
360104 - Metals & Alloys- Physical Properties
420400 - Engineering- Heat Transfer & Fluid Flow